Bitcoin hard fork nightmare becomes reality after testnet splits

A week ago, Bitcoin developers disclosed a glaring vulnerability in the network that could’ve led to a series of abrupt chainsplits. Well, it appears this scenario has begun to play out. The good thing is that the incident took place on a controlled testnet, not the Bitcoin mainnet. A quick refresher – on September 18, devs disclosed bugs in Bitcoin Core software that gave miners the option of bringing down essential parts of the Bitcoin infrastructure (nodes) by submitting a ‘bad’ block to the blockchain. While developers have already issued a fix, it is still up to the individual node operators…

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